Here is an interesting back-and-forth between Arnold Kling and Brad DeLong, a couple of econ bloggers I read with some regularity. They discuss the New Deal, and while I am tempted to make some ideological points here, these two guys are far more expert than I will ever be, so I suggest you just click through.
DeLong is one of the few lefty bloggers that I take seriously, even though I rarely agree with him. And by serious, I think he believes what he does for real, logical, empirical reasons. Economics, like medicine, is at its heart both prescriptive and speculative, and so while we can agree on basic science, informed people can disagree on the way forward.
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